Results 111 to 120 of about 1,026,932 (240)

The Meir-Keeler Type for Solving Variational Inequalities and Fixed Points of Nonexpansive Semigroups in Banach Spaces

open access: yesJournal of Applied Mathematics, 2012
The aim of this paper is to introduce a new iterative scheme for finding common solutions of the variational inequalities for an inverse strongly accretive mapping and the solutions of fixed point problems for nonexpansive semigroups by using the ...
Phayap Katchang, Poom Kumam
doaj   +1 more source

An Extension of a result of Csiszar

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
We extend the results of Csiszar (Z. Wahr. 5(1966) 279-295) to a topological semigroup S. Let μ be a measure defined on S. We consider the value of α=supKcompactlimn→∞supx∈Sμn(Kx−1). First. we show that the value of α is either zero or one.
P. B. Cerrito
doaj   +1 more source

UNDECIDABILITY AND THE DEVELOPABILITY OF PERMUTOIDS AND RIGID PSEUDOGROUPS

open access: yesForum of Mathematics, Sigma, 2017
A permutoid is a set of partial permutations that contains the identity and is such that partial compositions, when defined, have at most one extension in the set.
MARTIN R. BRIDSON, HENRY WILTON
doaj   +1 more source

Idempotent 2x2 matrices over linearly ordered abelian groups [PDF]

open access: yesCategories and General Algebraic Structures with Applications
In this paper we study multiplicative semigroups of $2\times 2$ matrices over a linearly ordered abelian group with an externally added bottom element. The multiplication of such a semigroup is defined by replacing addition and multiplication by join and
Valdis Laan, Marilyn Kutti
doaj   +1 more source

Regularity and Green's Relations on a Semigroup of Transformations with Restricted Range

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
Let T(X) be the full transformation semigroup on the set X and let T(X,Y)={α∈T(X):Xα⊆Y}. Then T(X,Y) is a sub-semigroup of T(X) determined by a nonempty subset Y of X.
Jintana Sanwong, Worachead Sommanee
doaj   +1 more source

Free Strict Inverse Semigroups

open access: yesJournal of Algebra, 1993
An inverse semigroup is ``strict'' if it is a subdirect product of Brandt semigroups and groups. Strict inverse semigroups form a variety of inverse semigroups. Other than the varieties of Clifford semigroups, its subvarieties are those of the form \({\mathbf H}\vee{\mathbf B}\), where \(\mathbf H\) is some variety of groups and \(\mathbf B\) is the ...
openaire   +2 more sources

Inversions of Hermite Semigroup [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
Let { e − c H | c ⩾ 0 } \{ {e^{ - cH}}|c \geqslant 0\} be the Hermite semigroup on the real line R \mathbb {R} . Then a representation is constructed
openaire   +1 more source

Fundamental solutions for semidiscrete evolution equations via Banach algebras. [PDF]

open access: yesAdv Differ Equ, 2021
González-Camus J, Lizama C, Miana PJ.
europepmc   +1 more source

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